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. 2023 Jan 12;13:626. doi: 10.1038/s41598-023-27586-4

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Taxonomic differences in fecal microbiota among participants. The fold change (log₂) denotes the difference in relative abundance between participants with episodic migraine and the control (A), between those with chronic migraine and the control (B), and between those with episodic and chronic migraine (C). CM chronic migraine; EM episodic migraine.